While a lot of people certainly eat fresh and perishable groceries.
There are likely a LOT more that almost exclusively eat out or eat frozen stuff.
Local facebook rumor: nearest Home Depot is selling out of the small chest freezers as people stock up on meat and frozen veg/etc. Our power flickered a cpl times yesterday (unusual because no storms even close to us) and hubby and I joked it was everybody plugging in their new freezers...
Yeah, that I would believe.
I plan to eat mostly out of my freezer for now, but have enough variety in non-perishables that I could survive a while on them.
That is why I did so many runs to the store. I basically had to rethink my pantry.